/Engine/Plugins/Runtime/OpenXR/Source/OpenXRHMD/Public/IOpenXRExtensionPlugin.h
NOTE: All models that can be returned also need to be returned in GetControllerModels() so they're included when cooking a project. If this is skipped the controllers won't show up in packaged projects
virtual bool GetControllerModel ( XrInstance InInstance, XrPath InInteractionProfile, XrPath InDevicePath, [FSoftObjectPath](API\Runtime\CoreUObject\UObject\FSoftObjectPath) & OutPath )